PT symmetry protected non-Hermitian topological systems

We study PT symmetry protected topological phase in non-Hermitian 1D and 2D systems. We show that topological phase exist in non-Hermitian PT symmetric systems for both gapped and gapless systems and discuss appearance of exceptional points. We apply our formalism to a complex extension of the SSH m...

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Detalles Bibliográficos
Autores principales: Yuce, C., Oztas, Z.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6258762/
https://www.ncbi.nlm.nih.gov/pubmed/30479365
http://dx.doi.org/10.1038/s41598-018-35795-5
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author Yuce, C.
Oztas, Z.
author_facet Yuce, C.
Oztas, Z.
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description We study PT symmetry protected topological phase in non-Hermitian 1D and 2D systems. We show that topological phase exist in non-Hermitian PT symmetric systems for both gapped and gapless systems and discuss appearance of exceptional points. We apply our formalism to a complex extension of the SSH model, topological semimetals and nodal superconductors.
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spelling pubmed-62587622018-12-03 PT symmetry protected non-Hermitian topological systems Yuce, C. Oztas, Z. Sci Rep Article We study PT symmetry protected topological phase in non-Hermitian 1D and 2D systems. We show that topological phase exist in non-Hermitian PT symmetric systems for both gapped and gapless systems and discuss appearance of exceptional points. We apply our formalism to a complex extension of the SSH model, topological semimetals and nodal superconductors. Nature Publishing Group UK 2018-11-27 /pmc/articles/PMC6258762/ /pubmed/30479365 http://dx.doi.org/10.1038/s41598-018-35795-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Yuce, C.
Oztas, Z.
PT symmetry protected non-Hermitian topological systems
title PT symmetry protected non-Hermitian topological systems
title_full PT symmetry protected non-Hermitian topological systems
title_fullStr PT symmetry protected non-Hermitian topological systems
title_full_unstemmed PT symmetry protected non-Hermitian topological systems
title_short PT symmetry protected non-Hermitian topological systems
title_sort pt symmetry protected non-hermitian topological systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6258762/
https://www.ncbi.nlm.nih.gov/pubmed/30479365
http://dx.doi.org/10.1038/s41598-018-35795-5
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